82 DESCPdPTION OF GLOSSINA TABANIF0EMI8. 



broader and in 9 ^t any rate usually shorter than in G. iiir/ro- 

 fusca, Newst. ((/. Figs. 19 and 18), distal extremity prominent, 

 fringe of hair on front margin in length equal to from one-fourth 

 to one-third of width of third joint, fringe of minute hairs on 

 hind margin also much or distinctly shorter than corresjionding 

 fringe in case of G. nigrofusca, arista buff, first and second joints 

 and third joint at base dark brown beneath, branched hairs from 

 eighteen to twenty- three in number ; palpi dark mouse-grey on 

 outer side above, dark brown at tips, proximal three-fourths buff 

 below ; the pnljn usually appear less slemler — i.e. broader (viewed 



Fig. 19. 

 Antenna of Glossina tabanifonnis, Westw. (x 30.) 



from above) and deeper (viewed from the side) — than those of 

 G. nigrofusca ; proboscis bulb as in latter species. 



Thorax. — General coloration as in G. nigrofusca, usual dark 

 markings of dorsum more or less distinct ; apical scutellar 

 bristles of J not short (about four-fifths so long as those of ^ ). 



Abdomen as in G. nigrofusca. 



Legs buff, femora less infuscated than those of G. nigrofusca ; 

 middle femora sometimes with a dark greyish-brown elongate 

 blotch on outer side beyond middle, hind femora occasionally 

 with a faint indication of a similar infuscation ; middle and hind 

 tibiae with a vestige of a more or less incomplete dark brown 

 ring round middle, which, however, may be very faint or entirely 



